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--- linux:webserver:nginx [2016/09/24 22:08]
tkilla [microcaching]
+++ linux:webserver:nginx [2020/11/13 04:11]
tkilla [Block Bots, SQL Injections, etc]
@@ Line 143: / Line 143: @@
   fastcgi_pass_header Cookie;
   fastcgi_ignore_headers Cache-Control Expires Set-Cookie;
+====== Security ======
+===== Block Bots, SQL Injections, etc =====
+Block Bots in nginx.conf include like dissallow.conf:
+  server { ...
+    if ($http_user_agent ~* (AspiegelBot|MegaIndex|heritrix|panscient|HubSpot|libwww-perl|OpenVAS-VT|masscan|Linguee|Nimbostratus|Seekport|SMTBot|SEOkicks|SeobilityBot|360Spider|AhrefsBot|BLEXBot|MJ12bot|BUbiNG|Findxbot|Morfeus|larbin|ZmEu|Toata|talktalk|Baiduspider|webalta|nikto|wkito|pikto|scan|acunetix|morfeus|webcollage|youdao|HTTrack|clshttp|archiver|loader|email|harvest|extract|grab|miner|SemrushBot|GetWeb!|GetRight|Go!Zilla|Download\Demon|Go-Ahead-Got-It|TurnitinBot|GrabNet|Indy\ Library) ) {
+        # Connection Closed Without Response
+        # A non-standard status code used to instruct nginx to close the connection without sending a response to the client,
+        # most commonly used to deny malicious or malformed requests.
+        return 444;
+    }
+  ...
+  }
+https://www.howtoforge.com/nginx-how-to-block-exploits-sql-injections-file-injections-spam-user-agents-etc

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